Fence making machine



July 19, 1932.

N. S. HARTER FENCE MAKING MACHINE Filed April 17, 1950 2 Sheets-Sheet l1120m- Noczhfibbrikr:

July 19,, 1932. N. s. HARTER FENCE MAKING MACHINE Filed April 17, 1930 2Sheets-Sheet 2 Noah fiffarier 1 Mw%f% Patented July 19, 1932 e STATES Imm s. HARTEnQoF wAoxEeAn, ILLINOISi- The invention relates to fencemaking machinery and has reference more particularly to improvements inmechanism for forming versely and longitudinally of the fabric which aresubstantially equal, but under conditions in actual use, the fabric.will. be stretched so that the longitudinal axes in crease in length andthe: transverse axesicorwire fence is therefore unsuited for use underconditions where severe strain will he placed uponit. The presentinvention contemplates a novel form ofwire fence picket which, whenfabricate'd into fencing will form a fabric'of triangular mesh. Thistype of mesh consists of diagonal portions joined by substantialhorizontal portions, whereby longitudinal strain placed upon thefabricwill be taken up by horizontal portions, and thus tendency toelongate in directions parallel: to

these portions will be materially reduced. To this end an object of thepresent invention is to provide ways and means of forming a wire fencepicket of the novel type described, and of performing similar wirebending operations. i t

A still further object of the invention is to provide novel fence makingmachinery which will be simple in construction and positive and reliablein operation. v v

, In the drawings, which illustrate-an embodiment of the devicez+- a tFigure 1 is a plan view of a portion of wire.

Applicationfiled April 17,

FENCE MAKING MACHINE 1930. Serial Nor. 444,928.

fence making machinery constructed 7 in ac cordance with the presentlnvent on;

Figure 2 is a side elevation of the same, Figure 3 is an end View o fthe same lookin towards theright as in Figure 1;.f j v 5' Figures 4, 5and 6 are plan views showing various steps in; the operation ofthe mechanism forforrning the wire fencepicket;

' vFigure ;7 showsa portion of awlre fence picket formed bythe mechanismofthe presu' I ent invention; and

Figure 8 shows a modified [form of fence picket alsoiformed bythemechanism of the present invention.

Referring to the drawings, particularly 'to L Figure 3, the presentmechanism is shown as including a plurality ofv base members 10supportinga plurality. of vise members 11 byuneans of securing bolts 12.,The vise g0 respondingly reduce in length. This type ofmembersareadapted to hold in rigid posi-i tion a spiral member designated initsentirety by 14. Located within the spiralisi j an arbor 15, which isadapted to have rotation within the spiral and for-this purpose has itsright hand end, asviewed in Figure 1, located in slot 16. rovided inthe: driving shaft QAny suita leofpower may I be associated with thedriving shaft toim+ r1 part rotary movement thereto. The spinal,

l lis a built-up member consisting of two spiral elements and includes atubular member. 18 having one end cutinto spiral shape, r the threadsthereof being designatede20.

Associated with these spiral threads is a of which will be presentlydescribed;

, A continuous length of wire 23 is fed to t the arbor (15, the wirebeingi first passed through a seriesofstraightening:rolls. 24, locatedon a base 25.: In the operationof the mechanism as rotations are;imparted tothe shaft. 17, the -,-wire strand: 23; is fed: to

is provided with a cam race 27. A cross shaft 28 mounted in bearings 29is provided I with an upstanding arm 30 having a pin 31 adapted toridewithin the cam race 27. The arm 32 located on thezother end of thecrossshaft 28 is provided at its upper end with '1 a pin'33, whichhasconnection with the leverf 344, the leveriin' turn being pivotallysecured at 35 to arm 36." The arm 36 is rotatably mounted on pin 37which pin is securedto base 38 formed integrally with one of the visemembers 11. On the outer end of arm 36 is located a depending pin 10adapted to have contacting engagement with the wire strand 23immediately prior to the feeding 'of'the same to the arbor 15. As

previously stated thelocationof the feed of thewi're strand to thearbor'is changed once an every revolution of the arbor, which isaccomplishedby the depending pin 4O through'oscillating movementsimparted to p the arm 36. The timing of these movements and-thus thevariations in the location of the feed of thewirestrand tothe arbor iscon- 'trolledby the specific formation given to the 'cam race27. i

"It is to be noted that the width of the f *arbor 15 determines thelength'ofc the horizontal portions formed in the wire picket,

3 wirepic'ket by reason of the thickness of the arbor.wAl'so, as' :willbe more fully exwhile a certain thickness is: imparted to theplained,-the diagonal portions of the picket whlch'serve 'to' connectthehorizontal por tions'is'accomplished by the variation in the locationof the point at which the wire strand is fed to the arbor. 7

In order to more fully understand the novel features of the presentinvention, attention -is'"directed to Figures 7 and 8 of the drawings,which showthe-characteristic shape of the Wire picket formed by thepresent "mechanism. -The horizontal -portions6 are' connected' by bends7 to diagonal portions 8 which serveto form a triangular shaped meshwhen thevarious pickets are interlinked" wlth thelr adjacent pickets.,Bythe mecha nism-de'scribed, the portions 6 maybe formedhorizontally,as shown in Figure I 8,or may have a slight displacementfrom the horizon-V tal' as more particularly shown in Figure 7. In theoperation of the device, reference or I 69;

being had to Figures 4, 5 and 6, the arborv 15 is shown in averticalposition and adapted to have rotation in a direction as indicated 1' bymarrow; The pin 40, although, having contacting 'engagementwith the wirestrand '1 "23 is at-this particular position of the arbor locatediinfits extreme left hand position. Wlth the parts inthis position, it willbe noted that one of the bends 7-between the horizontal and diagonalportions is just being completed. Referring more particularly p toFigure 5, it will be seen that the arbor 15 has been rotated 90 from itsposition 1n Figure 41 and is now located in a substantlally horizontalposition. Also, the pin is stlll 7 located in its extreme left handposition, but 7 it will be seen that by reasonof the rotation of thearbor 15, the spiral member remaining stationary, the wire picket hasmoved a distance on the arbor equal. to one quarteri of the pitch of thespiral member 21, namely from 7 point a to point I). It. is during thenext 90 movement of the arbor that movementis imparted to the pin 40,;which thus locates the'pin adjacent the right hand end of the spiral 21at point 0. This effects a material change in. the position at which thewire v strand 23 is fed'to the arbor 15 and thus causes 7 the formationon the wire picket of the diag- "onal portion 8. The magnitude of thisdiagonal portion is determinedjby the change in location of the feed ofthe wire strand 23 to V V the arbor 15, causedby movement oi the pin40in addition to the movementof the picket itself upon the arbor duetorotation of the arbor which will equal. substantially one or thedistancefrom point'b'todg I i quarter of the pitchof' the spiral member,

' Upon'continued rotation of the arbor15, the bend 7 being formed in-thei picketas shown in Figure 6, will have move'd. from the point-c topoint e during which movement of thearbor the pin 40-is retracted sothat the combined efi'ect of the movement of the movement imparted to.the 'pin 40 will form onthe'picketthe-horizontalportion Duriing the-nextmovement of the arbor another of the bends 7: inzth'e picket is formed 7whereupon theiparts'will assume the same position as disclosed in Figure4 and the series of operations will be again repeated. It is to be notedthat the horizontalportionsfi of ment of the pin the picket-is alsobeing caused to move in a: left hand 1 direction r upon I the arbor 15by reason of thezengagement of the bends 7 which have been formed 'iwiththe tion: in the timing of themovement imparted picket on the arb0r15-and the rearward the picket are formed as thepin :40 isbei'ngretracted, but in combination with this 'movethreads of thespiralmember'21. By a varia to'thefpin 40, the, portions 6 on the;picket may be given a slight angular displacement from the truehorizontahwhich' will result Figure 7. I

Although in the formation of a picket asidisclosed in the operation ofthe 'mechanism J has been describedlin connection with figures showingonly-skeleton-parts of the. machine,

the operationof the complete device asshown in Figure 1 issimilarexceptthat the spiral member employed presents spiral openings 22 withinwhich is located the .vari'ous bends thus pin is caused by the contourof the f cam race 27. Thepdisk 26 and arbor 15'are both associated withshaft 17 which results in a complete cycle of movement being imparted toarm 36 during every revolution of the arbor. There is formed upon thearbor then for every revolution a horizontal por tion 6, a bend 7 and adiagonal portion 8. It was previously stated that for a slightdisplacement of the horizontal portion it was only necessary to vary thetiming in the movements imparted to the arm"36. This can accordingly beaccomplished by replacing the disk 26 by a similar disk having a camrace of a slightly different contour It is to be understoodthat I do notwish to be limited by the exact embodiment of the device shown, which ismerely by way of illustration. and not limitation, as various and otherforms of the device will of course be apparent to those skilled in theart without departing from the spirit of the invention or the scope ofthe claims.

I claim: 7 p

1. A fence making machine comprising a stationary spiral member and arotating arbor located within said member, said arbor being adapted tohave a'wire strand wound thereon and means for varying the location ofthe point of feed of the .wire strand to said arbor to thereby impart acharacteristic shape to the wire wound upon the arbor.

2. A fence making machine comprising a stationary spiral member and arotating arbor located within said member, means for directing the feedof wire to said arbor, said directing means having a regularly recurringcycle of movement to vary at definite periods the point of feed of thewire to said arbor.

3. A fence making machine comprising a stationary spiral member and arotating arbor located within said member, said arbor having a wirestrand wound thereon tor the purpose of shapingsaid strand, and meansfor directing the feed of the wire strand upon said arbor, saiddirecting means havinga cycle of movement occurring once during arotation of the arbor to vary the point of feed of the wire strand tosaid arbor, whereby a characteristic shape is imparted to the Wire woundupon the arbor.

4. A fence making machinecomprising a stationary spiral member, an arborlocated within said member, means for imparting rotations to said arbor,wire directing means for directing the feed of wire tosaid arbor, saidmeans comprising a pivoted arm having engagement with the wireimmediately in advance of the arbor, and acam for causing wire is' fedthereto, said means having move- Wire strand Wound thereon for. thepurpose the desired movements to .be impartedto the pivoted arm. V

5.-'A fence making machine comprising a stationary spiral member, anarbor located within said member, means for imparting rotations to saidarbor,"wire directing means comprising a pin having contactingengage-''ment with the wireimmediately in advance 'of tl1earbor,'a disk havlngrotatlons in ac-- cordance with the rotations of the arbor, 76

.a cam formed in the disk, and means associated'with the cam for causingdesired movements to be imparted to the pin.

6. Ina machine for forming a wire fence picket, a rotating arbor uponwhich the picket is formed, a spiral member surround-- ing the arbor forcausing movement'of the picket thereon, and means for changing therelative position on the arbor at Which the ment-s iii-timed relationwith the rotations of the arbor. i I I 7. In a machine for forming'a-wire fence picket, a rotating arbor upon which Wire is wound to formthe picket, aspiralmember surrounding the arbor for causing movement ofthe picket on the arbor in a certain direction, and means for directingthe feed of the wire to the arbor, saidmeans having a regularlyrecurring movement in a direction op-' posite to that-0f the movement ofthe picket on the arbor, to thereby change the point of feed ofthe wireto thearbor;

8. In a machine for forming a wire fence picket, a rotating arbor uponwhich the picket is formed, a spiral member surrounding the arbor forcausing movement of the picket thereon, said member comprising spiralthreads and providing a shoulder at its inher end at which the wirestrand is fed to said arbor, and means for varying the point of feed ofsaid wire from one side of the shoulderto the other. I V 19. Afencemaking machine comprisinga stationary member and a rotating arborlocated within said member, said memberbeing shaped to provide spiralthreads, a second member of spiral shape associated with said firstmentioned member, said arbor having a 115 of shaping said strand,andmeans for varymg the feed of saldwire to said arbor from one side ofsald'second spiral member to the.

other side.

' 10. .A fence making machine'comprising a 1 20 stationary member and arotating arbor 10- cated within said member, said member be; ng shapedto, provide spiral threads and spiral openings, a second set of spiralthreads positioned in said spiral openings, and means for directing thefeeding of a wire, strand to said arbor, said means functioning to feedsaidstrand alternately to the respective sides of said secondset ofspiral threads;

11. A fence making machine comprisinga 1 stationary member and arotating arborlo- 7 cated Within said member, said member being shapedto provide spiral threads and spiral openings, a second set ofspiralthreadslpositioned in said openings and terminating to 'permit a wirestrand to lee-Wound upon the arbor, andfdireoting means for the Wirefunctioning to direct the same to one side of the second set of spiralthreads at said end and then to said other sides Signed at Viaukegan,Illinois, this 14th day of April, 1930.

NOAH s, HART R

